Factual error: At the bar in Tortuga, one of the three musicians is seen playing the 'concertina', but it was not invented yet. Sir Charles Wheatstone, an English physicist (b.1802 - d.1875), invented the 'concertina' around the mid 1800's. The 'concertina' is a small musical instrument like an accordion, with bellows and keys.Super Grover
Factual error: In the opening scenes of the film, the audience finds that Tom Hollander has warrants for the arrests of Orlando Bloom and Keira Knightley for a number of charges, one of which in conspiracy. However, while conspiracy is considered a distinct charge under American law and jurisprudence, this is not nor was it the case under British law. According to the principles of British common law and jurisprudence, conspiracy to commit a crime is legally identical to the commission of said crime (e.g., conspiracy to commit treason is considered treason).
Factual error: The formal title of the East India Trading Company is the Honourable East India Company or HEIC; official merchandise provided by said company would not be affixed merely with the letters EIC but rather HEIC.